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Re: Task notifications in jBPM 5.3
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created by <a href="https://community.jboss.org/people/aadav86">Aadav N</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/830810#830810">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Maciejs,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So now the deadlines are created at the database end. And at the scheduled time when the services are attempting to run we get an exception like this.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2013-07-30 20:13:13,823 ERROR [org.jbpm.task.service.persistence.TaskPersistenceManager] (pool-20-thread-1) Unable to rollback transaction (or to mark as 'to rollback')!</p><p>java.lang.NullPointerException</p><p>          at org.drools.persistence.jta.JtaTransactionManager.getStatus(JtaTransactionManager.java:205)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.rollback(TaskJTATransactionManager.java:51)</p><p>          at org.jbpm.task.service.persistence.TaskPersistenceManager.rollBackTransaction(TaskPersistenceManager.java:97)</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1055)</p><p>          at org.jbpm.task.service.TaskService.executeEscalatedDeadline(TaskService.java:221)</p><p>          at org.jbpm.task.service.TaskService$ScheduledTaskDeadline.call(TaskService.java:359)</p><p>          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)</p><p>          at java.util.concurrent.FutureTask.run(FutureTask.java:138)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</p><p>          at java.lang.Thread.run(Thread.java:619)</p><p>2013-07-30 20:13:13,823 ERROR [org.jbpm.task.service.TaskService] (pool-20-thread-1) Could not start transaction.</p><p>java.lang.RuntimeException: Could not start transaction.</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1062)</p><p>          at org.jbpm.task.service.TaskService.executeEscalatedDeadline(TaskService.java:221)</p><p>          at org.jbpm.task.service.TaskService$ScheduledTaskDeadline.call(TaskService.java:359)</p><p>          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)</p><p>          at java.util.concurrent.FutureTask.run(FutureTask.java:138)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</p><p>          at java.lang.Thread.run(Thread.java:619)</p><p>Caused by: java.lang.NullPointerException</p><p>          at org.drools.persistence.jta.JtaTransactionManager.getStatus(JtaTransactionManager.java:205)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.getStatus(TaskJTATransactionManager.java:63)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.begin(TaskJTATransactionManager.java:36)</p><p>          at org.jbpm.task.service.persistence.TaskPersistenceManager.beginTransaction(TaskPersistenceManager.java:79)</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1036)</p><p>          ... 9 more</p><p>2013-07-30 20:13:14,204 ERROR [org.jbpm.task.service.persistence.TaskPersistenceManager] (pool-21-thread-1) Unable to rollback transaction (or to mark as 'to rollback')!</p><p>java.lang.NullPointerException</p><p>          at org.drools.persistence.jta.JtaTransactionManager.getStatus(JtaTransactionManager.java:205)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.rollback(TaskJTATransactionManager.java:51)</p><p>          at org.jbpm.task.service.persistence.TaskPersistenceManager.rollBackTransaction(TaskPersistenceManager.java:97)</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1055)</p><p>          at org.jbpm.task.service.TaskService.executeEscalatedDeadline(TaskService.java:221)</p><p>          at org.jbpm.task.service.TaskService$ScheduledTaskDeadline.call(TaskService.java:359)</p><p>          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)</p><p>          at java.util.concurrent.FutureTask.run(FutureTask.java:138)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</p><p>          at java.lang.Thread.run(Thread.java:619)</p><p>2013-07-30 20:13:14,204 ERROR [org.jbpm.task.service.TaskService] (pool-21-thread-1) Could not start transaction.</p><p>java.lang.RuntimeException: Could not start transaction.</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1062)</p><p>          at org.jbpm.task.service.TaskService.executeEscalatedDeadline(TaskService.java:221)</p><p>          at org.jbpm.task.service.TaskService$ScheduledTaskDeadline.call(TaskService.java:359)</p><p>          at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)</p><p>          at java.util.concurrent.FutureTask.run(FutureTask.java:138)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)</p><p>          at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)</p><p>          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)</p><p>          at java.lang.Thread.run(Thread.java:619)</p><p>Caused by: java.lang.NullPointerException</p><p>          at org.drools.persistence.jta.JtaTransactionManager.getStatus(JtaTransactionManager.java:205)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.getStatus(TaskJTATransactionManager.java:63)</p><p>          at org.jbpm.task.service.persistence.TaskJTATransactionManager.begin(TaskJTATransactionManager.java:36)</p><p>          at org.jbpm.task.service.persistence.TaskPersistenceManager.beginTransaction(TaskPersistenceManager.java:79)</p><p>          at org.jbpm.task.service.TaskServiceSession.executeEscalatedDeadline(TaskServiceSession.java:1036)</p><p>          ... 9 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>FYI, for now to make this piece work I'm just using DefaultEscalatedDeadlineHandler only. Not extending any custom handler. can you please let me know what am I missing here</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks,</p><p>Aadav</p></div>
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